Robert Santos III (born October 3, 1985) is an American professional racing driver from Franklin, Massachusetts.

Santos broke his dry spell at Kentucky Speedway when he started fourth and finished third, behind Erik Darnell and Erin Crocker.

The third-generation racer won a pole at Pocono Raceway in early August and qualified fifth at Talladega Superspeedway, but was unable to back up either with a strong finish.

In 2007, Santos made his NASCAR Busch Series debut at Richmond International Raceway for the new Riley D'Hondt Motorsports team.

He qualified seventh in his #91 Toyota but faded back to a thirtieth-place finish after running in the top 10 at the beginning of the race.

He also qualified fourth for the Camping World 200 at New Hampshire Motor Speedway and was running in the top 10 before being hit by a lapped car.

[2] Santos ran the 2011 Nationwide Series opener for Jimmy Means in what was a back-up JR Motorsports car after wrecking the 52 in practice; the Earnhardt family has a long friendship with the independent owner and former driver.

Santos' post-NASCAR career has been highlighted by wins in many of the nation's largest midget races, including the Turkey Night Grand Prix and Copper World Classic.